Figure 4From: Multi-visceral resection of pancreatic VIPoma in a patient with sinistral portal hypertension(A) Typical of pancreatic neuroendocrine tumors, this lesion contains interconnecting nests and trabeculae of uniform cuboidal cells with granular cytoplasm and central round nuclei within a hyalinized, well-vascularized stroma (Original magnification ×100). (B) The tumor deeply invades the muscularis propria of the stomach (Original magnification ×20).Back to article page